V2 Auto/Manual spool winder, diameter sensor and cooler

thingiverse

Read always updates at BOP. Once assembled my new FelFil extruder, I began designing a cheap and affordable spool winder. I had to design a cooler for extruded filament and a digital sensor for filament diameter. It's modular, allowing you to configure it according to your needs. You can choose between the winder only, the winder and cooler with or without the diameter sensor. You can adjust the winder speed manually but it can also be managed directly from the FelFil extruder (or other) speed. With the provided adapter, the winder can support almost all spools available. - [Measuring Test](https://youtu.be/-DmC_qaGq3w) (accelerated) - [Final Functional Test](https://youtu.be/_JpjYn3FgKo) - [Auto Mode Test](https://youtu.be/-4CrEfahBMU) - [TFT Test](https://youtu.be/EKV5Tw0jsNM) (sorry for the quality but taking movies of displays with my phone is very difficult) The new V7 version of firmware introduces manual/auto running mode and a filament diameter sensor that warns out if the diameter is out of tolerance. **MAN/AUTO** If you choose an LCD 1602 display, you'll find a toggle switch to select auto or man. If you choose a TFT display, you'll find two buttons on screen to select auto or man. The MAN mode lets you choose speed via the potentiometer while AUTO mode takes input PWM signal from extruder to automatically adjust winding speed relying on its extrusion speed. **RATIOS** Ratios are based on Felfil's range 0-9; with other extruders, I would advise keeping their output in this range. Otherwise, you have to modify all parameters in the "// ratios:" section (good luck!). Furthermore, now the cooler fan speed is proportional to winding speed, utilizing D8 PWM output. VARSPEED_V7.ZIP contains all necessary software and libraries. The whole project can be found in Tinkercad.com searching for "V2 Auto/Manual Spool Winder". In this V2 version, you'll find: - Remixed filament diameter sensor (see Acknowledgments section) - Remixed cooler - New spool clutch (yet to test)